A ceramic metal-halide lamp (CMH), also generically known as a ceramic discharge metal-halide (CDM) lamp, [1] is a type of metal-halide lamp that is 10–20% more efficient than the traditional quartz metal halide [2] and produces a superior color rendition (80-96 CRI).

The Philips Master Color CDM (CMH) Bulb, 315 Watts - 4,200 K puts out an ultra-high 1.95 PPF per watt/second light source. This 4200K is great for full cycle growing, and features a high 92 CRI with 33,000 initial lumens!

Philips MasterColor CDM35/T6/830 35w G12 3000K C130/E HID Light Bulb has a rating of 4.7 stars based on 16 reviews.

Ideal for new installations and facility upgrades, the Philips 21139-1 MasterColor pulse start metal halide bulb features an excellent lumen maintenance of 3000 initial lumens and significant energy savings. The 35-watt lamp creates a bright atmosphere with a color matched for halogen bulbs.

Available in 145, 205 and 330 watt clear and coated bulb finishes. Ideal for high-ceiling industrial, retail and distribution centers as well as outdoor applications. Shop for Philips 41107-4 145W ED28 CDM AllStart 4050K Metal Halide bulbs. LOW prices and FAST shipping on Philips metal halide lamps at 1000Bulbs.com!

Philips MasterColor® brand 70 Watt T6 clear ceramic metal halide lamp with G12 Bipin base. Far superior color rendering. Colors appear brighter and truer than with standard metal halide lamps. A rating, expressed in watts, to indicate the rate at which a lamp consumes energy. Also known as wattage value.